Biosorption of Cu and Zn in a Batch System via Dried Macroalgae Halimeda opuntia and Turbinaria turbinata

Authors

DOI:

https://doi.org/10.5755/j01.erem.77.1.27952

Keywords:

Biosorption, Copper, Zinc, Halmeda opuntia, Turbinaria turbinate, Macroalgae

Abstract

 

Biosorption is the most favourable technique for the treatment of heavy metals as it is fast, powerful, and low cost, it takes place in a wide range of temperatures as well as it can be used for almost all types of heavy metals. In this study, the biosorption technique adsorbs Cu2+ and Zn2+ on the dried macroalgae (Halimeda opuntia and Turbinaria turbinata) in a batch system. Experimental parameters affecting the biosorption process are initial metal ion concentrations (5, 10, 15 and 25 mg/L), pH between (4.5 and 5.2), biomass dosage (1 gm) and agitation speed 150 rpm applied at contact time (30, 60 and 120 min). The significant-high average removals of Cu2+ by H.opuntia (> 96%) were recorded in concentrations of 10, 15 and 25 ppm at 120 min and the highest average removals by T.turbinata (81.07%, 78.32% and 74.7%) were recorded in concentrations of 5, 10 and 15 ppm at 120 min. The lowest average removal of Cu2+ 89.22% was recorded by H.opuntia and 49.9% was recorded by T.turbinata in a concentration of 25 ppm at 30 min. In the same way, significant-high average removals (>94%) were recorded in a concentration of 10 ppm at 120 min for H.opuntia and in a concentration of 5 ppm by at 60 min for T.turbinata. In conclusion, the dead biomass of marine algae can provide a promising and low-cost technique for removing heavy metal pollutants in medical industries.

Author Biographies

Amany G. Madkour, Marine Pollution Dept., Marine Environment Division, National Institute of Oceanography and Fisheries (NIOF), Egypt

A PhD Lecturer Researcher of Marine Pollution Dept., Marine Environment Division, National Institute of Oceanography and Fisheries (NIOF), Egypt.

I Participate in Various Funded Environmental Projects, Environmental Assessment, Environmental feasibility studies for many (Hotels, Factories, water desalination plants and Fish farms) and Determination of Various Pollution parameters in (Sediment, Seawater, Freshwater, Wastewater and sludge).

Mahmoud A. Dar, National Institute of Oceanography and Fisheries (NIOF), Egypt

Director of Red Sea and Professor of Marine Geology and Ecology Branch at Marine Environment Division, National Institute of Oceanography and Fisheries (NIOF), Egypt

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Published

2021-03-30

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Section

Articles